HWA: House Wrap Air Barrier System

Photo Source: Summerhill


Advantages:

  • Eliminates need for air sealing interior electrical and plumbing penetrations
  • Allows for conventional scheduling of sub-trades
  • If adequately attached to structural sheathing, it can withstand wind pressures and form part of a pressure-equalized rain screen system
  • Easily repaired before being covered
  • Acts as the weather barrier reducing wind effects